08230-7102 HDS 1196 AB (HD 71591)
08h 22m 59.85s -71° 02' 09.5" P.A. 76.00 sep 0.0 mag 9.36,10.13 Sp F6V dist. 132.1 pc (430.91 l.y.)
Coord 2000 |
08230-7102 |
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Discov num |
HDS1196 |
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Comp |
AB |
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Coord arcsec 2000 |
08 22 59.85 -71 02 09.5 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
10 |
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Pa first |
25 |
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Pa last |
76.1 |
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P.A. Now (θ) |
117.7° |
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Sep first |
0.1 |
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Sep last |
0.031 |
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Sep. Now (ρ) |
0.026" |
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Mag pri |
9.36 |
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Mag sec |
10.13 |
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delta mag (ΔM) |
0.77 |
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Spectral class |
F6V (yellow-white) |
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Pri motion ra |
-038 |
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Sec motion ra |
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Pri motion dec |
+060 |
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Sec motion dec |
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Notes |
O
W
(Orbital solution, ) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 71591 |
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Constellation |
Volans |
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HIP |
41093 |
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Tycho2 |
9197-02354-1 |
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HD |
71591 |
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CP |
CP-70 768 |
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Distance |
132.1 |
|
Distance ly |
430.91 |
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ORBITAL ELEMENTS
Period (P) | 19.45y | ± 1.72 |
Periastron (T) | 2021.85y | ± 1.33 |
Semi-major axis (a) | 0.0652a | ± 0.0079 |
Eccentricity (e) | 0.63 | ± 0.25 |
Inclination (i) | 133.6° | ± 24.5 |
Longitude of periastron (ω) | 175.7° | ± 2.2 |
Node (Ω) | 16.3° | ± 18.6 |
Notes | | |
Reference | Tok2020e | |
Equinox | | |
Last observation | | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
331.8 |
0.047 |
2001 |
301.0 |
0.030 |
2002 |
229.7 |
0.023 |
2003 |
155.7 |
0.024 |
2004 |
94.7 |
0.032 |
2005 |
66.4 |
0.047 |
2006 |
52.3 |
0.063 |
2007 |
43.5 |
0.076 |
2008 |
37.1 |
0.086 |
2009 |
32.0 |
0.095 |
2010 |
27.5 |
0.101 |
2011 |
23.5 |
0.104 |
2012 |
19.7 |
0.106 |
2013 |
16.0 |
0.106 |
2014 |
12.1 |
0.103 |
2015 |
8.0 |
0.098 |
2016 |
3.3 |
0.091 |
2017 |
357.7 |
0.082 |
2018 |
350.3 |
0.070 |
2019 |
339.3 |
0.054 |
2020 |
318.5 |
0.037 |
2021 |
266.3 |
0.023 |
2022 |
188.5 |
0.024 |
2023 |
117.7 |
0.026 |
2024 |
76.4 |
0.040 |
2025 |
57.7 |
0.056 |
2026 |
47.1 |
0.070 |
2027 |
39.8 |
0.082 |
2028 |
34.2 |
0.091 |
2029 |
29.5 |
0.098 |
2030 |
25.3 |
0.103 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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